2005 GMC Savana Van Owner's Manual - Page 166

To adjust all tone and speaker controls to the middle position, push and hold the AUDIO knob when no tone or speaker control is displayed. ALL CENTERED will appear on the display, you will hear a beep, and the display level will be adjusted to the middle position. AUTO EQ (Automatic Equalization): Press this button to select customized equalization settings designed for country/western, jazz, talk, pop, rock, and classical. Selecting CUSTOM or changing bass or treble, returns the EQ to the manual bass and treble settings. The radio will save separate AUTO EQ settings for each preset and source. To adjust all tone and speaker controls to the middle position, push and hold the AUDIO knob when no tone or speaker control is displayed. ALL CENTERED will appear on the display, you will hear a beep, and the display level will be adjusted to the middle position. Finding a Program Type (PTY) Station (RDS and XM™) To select and find a desired PTY perform the following: 1. Press the TYPE button to activate program type select mode. TYPE and a PTY will appear on the display. 2. Turn the TYPE knob or press and release the TYPE button to select a PTY. 3. Once the desired PTY is displayed, press and release either the TYPE or the SEEK arrows to select and to take you to the PTY's first station. 4. To go to another station within that PTY and the PTY is displayed, press either the TYPE or the SEEK arrows once. If the PTY is not displayed, go back to Step 1. 5. Press either the TYPE or the SEEK arrows to exit program type select mode. If the radio cannot find the desired program type, NONE will appear on the display and the radio will return to the last station you were listening to. Adjusting the Speakers (Balance/Fade) AUDIO: To adjust the balance between the right and the left speakers, push and release the AUDIO knob until BAL appears on the display. Turn the knob to move the sound toward the right or the left speakers. To adjust the fade between the front and the rear speakers, push and release the AUDIO knob until FADE appears on the display. Turn the knob to move the sound toward the front or the rear speakers. To adjust the balance and fade to the middle position, push the AUDIO knob, then push it again and hold it until the radio produces one beep. The balance and fade will be adjusted to the middle position and the display will show the speaker balance. 3-52